SmartFlow USA Resources

Quick Access Resource Library

Technical articles and injection mold cooling resources are provided free to industrial partners.

Articles

External Articles by Smartflow Associates

Cooling Geometry and the Reynolds Calculation

The original Turbulent Flow Rate Calculator worked well with a round circuit diameter, such as a drilled passage, but not as well using hydraulic diameters. Here’s how the problem was fixed.

An Engineering Approach to Mold-Cooling Circuit Design

The Energy Density vs. ΔT/in. relationship is an important step forward in pursuit of a science-based approach to cooling-circuit design. Here’s why.

An Inside Look at Turbulent Flow

Years of talk about observing and studying coolant flow in a clear simulated cooling channel finally became a reality. Here’s how it all came together, and what it all means.

Avoid Scale Buildup: The Silent Enemy of Cooling Performance

Obstructions in cooling can wreak havoc on molding. We recount our experience and offer tips on how you can keep things flowing.

Improve the Cooling Performance of Your Molds

Need to figure out your mold-cooling energy requirements for the various polymers you run? What about sizing cooling circuits so they provide adequate cooling capacity?

Balancing the Heat Budget in Injection Molds

Basic formulas for how much heat you must pull out of the mold to achieve a set cycle time.

Make Water Treatment Part of Your Process Cooling Program

Dirty, rusty, smelly water can wreak havoc with even the most meticulous process-cooling program.

Leverage Your Cooling Power

Injection molding is fundamentally a process that involves moving heat energy from place to place. Calculate heat transfer to maximize your cooling capacity.

Smartflow Publications

Measuring the Magic of Turbulent Flow

Why is turbulence so important to mold cooling? Link to Phil Burger’s research article.

Viscosity Matters 

Factors that can inhibit good cooling and thoughts on how you can improve results.

Practical Mold Cooling 

Cooling conditions affect cycle time, part dimensions, surface finish, and warpage. Here are some ideas for fine-tuning your mold cooling system.

Manifold Tutorial Article

Select the proper cooling water manifold for your application.

Tools

The Value Curve

Discover the relationship between steel temperature and cooling water flow rate using this simple graph.

Heat Transfer Example – Insulator Boards

This page shows the calculation steps to figure heat transfer from an injection mold through the clamp plate and into the platen.

Find a Water Treatment Professional

Visit the website of the Association of Water Technologies to learn more.

Sample Cooling Setup Sheet

A common cooling setup sheet for your facility standardizes information used by all personnel, eliminating miscommunication.

Quick Mold Change Guide

Three ways to implement SMED (Single Minute Exchange of Die) in Injection Molding Operations.

Turbulent Flow Reference Chart

Minimum flow rates for maximum cooling

Expected Rate of Flow

Flow Rate guidelines per cooling line size

Galvanic Corrosion

Causes and prevention guide

Non-Electric Mold Temperature Regulator

Determine the correct water temperature setting for the Mold Temperature Regulator. Charts and graphs will help you decide if this product is right for your process.